 Photocatalytic technology has been gaining increasing attention due to its potential applications in industry and environmental protection. It is important to develop an efficient and cost-effective photocatalyst that can be used in industrial processes. This review provides an overview of the current status of photocatalytic technology, focusing on the characteristics of photocatalysts, their preparation and their application in industry. This article was authored by Fu Baozong, Xian Mingwang, Haonan Lu, and others.